Generally speaking. And it’s a shame because it need not. But “a little error in the beginning becomes a great error at the end” (Aquinas). Presuppositions spoil the recipe.
Anthony Malcolm Daniels (b. 1949), who generally uses the pen name Theodore Dalrymple, is an English writer and retired prison doctor and psychiatrist. He worked in a number of Sub-Saharan African countries as well as in the east end of London. Before his retirement in 2005, he worked in City Hospital, Birmingham and Winson Green Prison in inner-city Birmingham, England.